Horizontal beam reflections occur.The question at the end of the trial.1. when a beam parallel to the major axis bearing surface reflection plate front porch falling curve concave and convex curved surface. The light will reflect the same or not. Coverage groups (ReqGroup) form. Are not the same. Rangsisathon of the inner arc reflecting for some time, but the combination of rangsisathon from the outer arc reflection will spread out from each other. 2. point rangsisathon from the inner arc of sheet metal come together called? Focal point or hub
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